WO2009122211A2 - Forage de puits directionnel - Google Patents

Forage de puits directionnel Download PDF

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Publication number
WO2009122211A2
WO2009122211A2 PCT/GB2009/050320 GB2009050320W WO2009122211A2 WO 2009122211 A2 WO2009122211 A2 WO 2009122211A2 GB 2009050320 W GB2009050320 W GB 2009050320W WO 2009122211 A2 WO2009122211 A2 WO 2009122211A2
Authority
WO
WIPO (PCT)
Prior art keywords
bent
section
drilling assembly
orienter
assembly according
Prior art date
Application number
PCT/GB2009/050320
Other languages
English (en)
Other versions
WO2009122211A3 (fr
Inventor
Antoni Miszewski
Original Assignee
Antech Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Antech Ltd filed Critical Antech Ltd
Priority to US12/936,597 priority Critical patent/US8978784B2/en
Priority to GB1016755A priority patent/GB2472705A/en
Priority to CA2722762A priority patent/CA2722762C/fr
Publication of WO2009122211A2 publication Critical patent/WO2009122211A2/fr
Publication of WO2009122211A3 publication Critical patent/WO2009122211A3/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/04—Directional drilling
    • E21B7/06—Deflecting the direction of boreholes
    • E21B7/061—Deflecting the direction of boreholes the tool shaft advancing relative to a guide, e.g. a curved tube or a whipstock
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/04—Directional drilling
    • E21B7/06—Deflecting the direction of boreholes
    • E21B7/067—Deflecting the direction of boreholes with means for locking sections of a pipe or of a guide for a shaft in angular relation, e.g. adjustable bent sub

Definitions

  • This invention relates to directional drilling of bores, particularly (though not exclusively) to produce fluid such as oil or gas from an underground formation.
  • EP0787886 shows a drilling assembly including a bent housing having a bit mounted below a lower section, and a mud flow operated motor in said upper section for rotating said bit, the bent housing being suspended from a tubular housing.
  • the tubular housing includes an orienter and sensors for rotating the bent housing, so that the bent housing can be oriented at a particular azimuth relative to tubular housing and the drill bit operated to drill a curved path in the direction of the azimuth, or the bent housing can be continuously rotated in order to drill a borehole can be considered approximately straight (the path will actually describe a slight spiral).
  • a drilling assembly comprising a bent housing terminating in a drill bit, and a top section coupled to the bent section, the top section being suspended upon coiled tubing, the drilling assembly including an orienter means capable of rotating the bent housing with respect to the top section, wherein the orienter means includes an electric motor situated in the bent section.
  • a drilling assembly comprising a bent housing terminating in a drill bit, and a top section coupled to the bent section, the top section being suspended upon coiled tubing, the drilling assembly including an orienter means capable of rotating the bent housing with respect to the top section, and including sensor means for monitoring downhole physical variables wherein the sensor means are situated in the bent section.
  • Fig. 1 is a longitudinal view of an embodiment of the directional drilling assembly
  • the drilling assembly comprises a cable head section 12, release section 14, and a bent section 16 and drill bit 18.
  • the bent section 16 comprises an upper section 22 and a lower section 24.
  • the upper section includes an orienter section 26, a valve section 28, a sensor section 30 and a mud motor 32, while the drill bit 18 is attached to the end of the lower section 24.
  • the drilling assembly is suspended on coiled tubing 10 by the cable head section 12.
  • the coiled tubing includes an electric wireline 15, so that the coiled tubing and electric wireline can provide mechanical, electrical and hydraulic connections to the tool depending on requirements.
  • the release section 14 is included which allows the coiled tubing and cable head section to be released from the rest of the drilling assembly. If the bottom hole assembly to become stuck in the borehole, the release section can be hydraulically or electrically activated so that the coiled tubing and cable head section can be removed from the well whilst the remainder of the drilling assembly can subsequently be fished using specialist tools adapted to freeing stuck tools.
  • the orienter section 26 is coupled to the electric release section.
  • the orienter section includes an electric drive mechanism 34 which is ideally is an electro- mechanical type consisting on an electrical motor and a gearbox. Continuous rotation in either direction is possible.
  • the orienter also includes a control means 36 which controls the drive means in response to instructions from an operator at the surface and the downhole sensors.
  • the orienter section 26 is attached to the valve section 28, which includes a valve control and drive means 38.
  • fluid flow performs two functions. It provides hydraulic power for the drill motor and it also washes away drill bit cuttings and transports them back to surface. Under many circumstances the same flowrate will adequately perform both functions. However, in some circumstances the flow through the motor needs to be less than that required to clean the borehole. In other circumstances it is bad to rotate the bit, for example in casing, when circulating fluids.
  • the valve section controls the fluid flow to be circulated through ports above the motor.
  • the orienter is positioned at the top of the BHA such that the swivel bearing section is pointing upwards.
  • the electronic control instrumentation of the orienter is located in the housing below the swivel bearing section where it can be easily connected to the other measurement instrumentation in the BHA.
  • a sensors section 30 is attached beneath the orienter section 28.
  • the sensor section includes a multiple sensor block 40, which includes sensors measuring such variables as pressure, temperature, weight, torque and vibration.
  • Downhole pressures are concerned with the performance of the drill motor and with ensuring that the pressures around the wellbore are at the correct level to prevent problems. Problems can occur with the structural integrity of the wellbore or by blocking the pores of the formation with too high pressures for the reservoir.
  • Direct measurement of weight and torque give more accurate and responsive measurements than can be determined from surface measurements. The operator can then accurately control weight on the drill bit for best penetration whilst at the same time keeping an eye on the torque on the drill motor to prevent it stalling.
  • a steering tool sensor 42 which is the directional sensor in the system, as opposed to the orienter which provides the control mechanism.
  • the sensor section 30 also contains a gamma ray sensor 44, which measures the natural gamma radiation of the rocks around the wellbore.
  • a gamma ray sensor 44 which measures the natural gamma radiation of the rocks around the wellbore.
  • Each rock formation emits in different ways and the distribution of the different signal levels can be used for depth correlation and to identify that a particular formation has been drilled through.
  • the gamma ray sensor In thin formations it is possible to identify the relative position of the borehole in the strata by adapting the gamma ray sensor so that it is focussed i.e. it responds preferentially to radiation in one direction. By rotating the sensor through 360° the form of the resulting signal distribution shows where the BHA is in relation to top and the bottom of the strata.
  • the gamma ray sensor is positioned lowest, directly behind the mud motor and the directional sensors are positioned directly above that. This order is chosen so that the directional sensors are spaced away from the magnetic interference of the mud motor.
  • the remaining weight-on-bit, torque-on-bit and pressure/temperature sensors are disposed below the orienter but not so that they interfere with the positioning of the GR and directional sensors.
  • the motor 32 is housed beneath the sensor section 30.
  • a typical motor is a positive displacement Moineau type with an adjustable bent sub set back typically 36"-48" from the drill bit. The bend ranges from 0-3° typically and the value is chosen based on the desired build rate (deg/100) of the directional borehole.
  • a feature of drilling with a bent sub motor that is commonly exploited when directionally drilling with jointed pipe, is the fact that both deviated and straight holes can be drilled by varying between rotating and sliding of the motor.
  • sliding mode the drill bit will build angle in the direction it is pointed.
  • rotating mode i.e. with the drill string and drill, motor turning, the drill bit will drill effectively straight as the bit proscribes a spiral drilling pattern.
  • the drill bit 18 can be either a tri-cone, PDC or diamond bit. These are chosen based on rock type, motor speed and all have different properties in relation to penetration and steerability.
  • the directional sensor can be used to feed back the direction in which the bit is rotated (tool face) as the rotation happens. On some existing systems an extra sensor is required to give this information.
  • the GR sensor By suitably shielding the GR sensor so that it detects natural gamma radiation preferentially in one direction, it is possible to make a 360° scan around the borehole.
  • the resulting measurement pattern can be used for tool location in thin beds such as coal seams.
  • any circulating valve are rotated around the borehole which is a feature which can be used to help prevent build up of drill cuttings on the low side of the hole in horizontal and highly deviated well bores.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

L'invention porte sur un ensemble de forage qui inclut un boîtier coudé s'achevant dans un trépan, et une section supérieure couplée à la section coudée. La section supérieure est suspendue à un tube spiralé. L'ensemble de forage inclut un moyen d'orientation capable de faire tourner le boîtier coudé par rapport à la section supérieure, le moyen d'orientation incluant un moteur électrique situé dans la section coudée. Le boîtier coudé inclut des moyens de détection pour contrôler des variables physiques de fond de trou, les moyens de détection étant situés dans la section coudée. Les moyens d'orientation peuvent être un moteur électromécanique.
PCT/GB2009/050320 2008-04-01 2009-04-01 Forage de puits directionnel WO2009122211A2 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US12/936,597 US8978784B2 (en) 2008-04-01 2009-04-01 Directional well drilling
GB1016755A GB2472705A (en) 2008-04-01 2009-04-01 Directional well drilling
CA2722762A CA2722762C (fr) 2008-04-01 2009-04-01 Forage de puits directionnel

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0805855.4A GB2458909B (en) 2008-04-01 2008-04-01 Directional well drilling
GB0805855.4 2008-04-01

Publications (2)

Publication Number Publication Date
WO2009122211A2 true WO2009122211A2 (fr) 2009-10-08
WO2009122211A3 WO2009122211A3 (fr) 2010-10-14

Family

ID=39387077

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2009/050320 WO2009122211A2 (fr) 2008-04-01 2009-04-01 Forage de puits directionnel

Country Status (4)

Country Link
US (1) US8978784B2 (fr)
CA (1) CA2722762C (fr)
GB (2) GB2458909B (fr)
WO (1) WO2009122211A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011140537A1 (fr) * 2010-05-07 2011-11-10 Cbg Corporation Outil de détection de rayonnement directionnel

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8869916B2 (en) 2010-09-09 2014-10-28 National Oilwell Varco, L.P. Rotary steerable push-the-bit drilling apparatus with self-cleaning fluid filter
BR112013005716B1 (pt) 2010-09-09 2020-07-07 National Oilwell Varco, L.P. Aparelho de perfuração rotativa direcionável
US9869127B2 (en) 2013-06-05 2018-01-16 Supreme Source Energy Services, Inc. Down hole motor apparatus and method
US9932821B2 (en) 2014-10-22 2018-04-03 Halliburton Energy Services Inc. Bend angle sensing assembly and method of use
US9115540B1 (en) 2015-02-11 2015-08-25 Danny T. Williams Downhole adjustable mud motor
WO2016178677A1 (fr) * 2015-05-06 2016-11-10 Thru Tubing Solutions, Inc. Ensemble de vannes de circulation à cycles multiples
US10294777B2 (en) 2015-07-27 2019-05-21 Cudd Pressure Control, Inc. Steering tool system
US10927623B2 (en) 2018-05-27 2021-02-23 Stang Technologies Limited Multi-cycle wellbore clean-out tool
US10907447B2 (en) 2018-05-27 2021-02-02 Stang Technologies Limited Multi-cycle wellbore clean-out tool
US10927648B2 (en) 2018-05-27 2021-02-23 Stang Technologies Ltd. Apparatus and method for abrasive perforating and clean-out
WO2020102359A1 (fr) 2018-11-13 2020-05-22 Rubicon Oilfield International, Inc. Dispositif vibrant à trois axes
US11668147B2 (en) 2020-10-13 2023-06-06 Thru Tubing Solutions, Inc. Circulating valve and associated system and method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5485889A (en) * 1994-07-25 1996-01-23 Sidekick Tools Inc. Steering drill bit while drilling a bore hole
EP0787886A2 (fr) * 1996-02-07 1997-08-06 Anadrill International SA Procédé et dispositif pour le forage dirigé utilisant un tubage enroulé
WO2001046549A1 (fr) * 1999-12-20 2001-06-28 Halliburton Energy Services, Inc. Systeme orientable en trois dimensions
GB2377232A (en) * 2001-07-02 2003-01-08 Antech Ltd Directional drilling apparatus

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0814231B2 (ja) * 1988-04-11 1996-02-14 日本鋼管株式会社 曲管の地中推進敷設工法及び掘削装置
US6059050A (en) * 1998-01-09 2000-05-09 Sidekick Tools Inc. Apparatus for controlling relative rotation of a drilling tool in a well bore
US6269892B1 (en) * 1998-12-21 2001-08-07 Dresser Industries, Inc. Steerable drilling system and method
US6176327B1 (en) * 1999-05-10 2001-01-23 Atlantic Richfield Company Method and toolstring for operating a downhole motor
US6571888B2 (en) * 2001-05-14 2003-06-03 Precision Drilling Technology Services Group, Inc. Apparatus and method for directional drilling with coiled tubing
GB0524998D0 (en) * 2005-12-08 2006-01-18 Schlumberger Holdings Steerable drilling system
NO326032B1 (no) * 2006-07-24 2008-09-01 Sira Kvina Kraftselskap Fremgangsmåte og anordning for retningsstyring av bergboremaskin
GB2456421B (en) * 2008-01-17 2012-02-22 Weatherford Lamb Flow operated orienter

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5485889A (en) * 1994-07-25 1996-01-23 Sidekick Tools Inc. Steering drill bit while drilling a bore hole
EP0787886A2 (fr) * 1996-02-07 1997-08-06 Anadrill International SA Procédé et dispositif pour le forage dirigé utilisant un tubage enroulé
WO2001046549A1 (fr) * 1999-12-20 2001-06-28 Halliburton Energy Services, Inc. Systeme orientable en trois dimensions
GB2377232A (en) * 2001-07-02 2003-01-08 Antech Ltd Directional drilling apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011140537A1 (fr) * 2010-05-07 2011-11-10 Cbg Corporation Outil de détection de rayonnement directionnel
CN102985852A (zh) * 2010-05-07 2013-03-20 Cbg公司 定向辐射检测工具
US8759749B2 (en) 2010-05-07 2014-06-24 Cbg Corporation Directional radiation detection tool
CN102985852B (zh) * 2010-05-07 2016-08-03 Cbg公司 定向辐射检测工具

Also Published As

Publication number Publication date
US20110061938A1 (en) 2011-03-17
WO2009122211A3 (fr) 2010-10-14
CA2722762C (fr) 2015-12-29
GB2458909A (en) 2009-10-07
GB201016755D0 (en) 2010-11-17
CA2722762A1 (fr) 2009-10-08
GB2458909B (en) 2013-03-06
US8978784B2 (en) 2015-03-17
GB2472705A (en) 2011-02-16
GB0805855D0 (en) 2008-04-30

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